CuAl thin film metallic precursors were selenised using a tube furnace or a rapid thermal processor (RTP). A comparison is made between the two processes for slightly Cu rich films and best crystallographic and elemental properties are obtained for films selenised by RTP: it was found that ternary compound could only be formed using the RTP. In both cases a large amount of CuxSey grains are found to develop at the surface of the films. Only samples processed in the RTP showed cathodoluminscence excitation at 2.68 eV characteristics of the electronic bandgap. Al rich samples were used to study the effect of etching the CuxSey phases from the surface in order to reveal the underlying CuAlSe2 material.
|Publication status||Published - 2009|
|Event||5th Photovoltaic Science Applications and Technology (PVSAT-5) - Glyndŵr University, Wrexham, UK|
Duration: 1 May 2009 → …
|Conference||5th Photovoltaic Science Applications and Technology (PVSAT-5)|
|Period||1/05/09 → …|